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klemol [59]
2 years ago
9

Pls help I don’t understand I’m not that smart.

Mathematics
2 answers:
lys-0071 [83]2 years ago
8 0

Answer:

that would be 47.5Ft

Step-by-step explanation:

The formula for the area of half a circle is (pi * radius^2)/2

jok3333 [9.3K]2 years ago
7 0

Answer:

47.5

Step-by-step explanation:

The formula for the area of half a circle is (pi * radius^2)/2

diameter = 11

pi = 3.14

radius = diameter/2 = 11/2 = 5.5

A = (3.14 * 5.5^2)/2

A = 94.985/2

A = 47.4925

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1 inch. 25% of 4 inches is 1 inch.
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4 years ago
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eight times a number plus five times another number is -13. the sum of the two is 1. What are the numbers?
Artemon [7]

Answer:

-6 and 7

Step-by-step explanation:

x is one number and y is the other

(1)-----------------    8x+5y=-13

(2)------------------  x+y= 1

first, let multiply both sides of (x+y=-1) by 8

(3)-----------------    8x+8y=8

lets subtract (1) from (3)

(8x+8y)-(8x+5y)=8-(-13)=3y

8-(-13)=3y ->  21=3y

y=7

lets plug in 7 into (2) for x

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the numbers are -6 and 7

4 0
3 years ago
Fill in the blank with a number to make the expression a perfect square.
Mariana [72]

Answer: 36

Step-by-step explanation: We can actually mental math this question, since perfect squares are squares obviously, 6 squared is <u>36</u>. Hope this helps, 15402256!

3 0
3 years ago
What is 9.1 divided by 3576 and than the answer rounded to the nearest whole number?
Bumek [7]
9.1 is less than half of 3576, so it's going to round down to 0. (mental math)

<em>I'm not sure if you were also asking for the actual value because of the wording, so here it is if you need it</em>.

As a fraction, \frac{9.1}{3576}=\frac{91}{35760}.
(multiply both the top and the bottom by 10)

As for the actual decimal value, it's something like 0.0025447....You can find this out using long division (you're going to have to know the multiples up to 10 of 3576, so list those off to the side) or simply a calculator. As for handling the decimal, just divide into the 9.1 like a normal number (only the digits are important when you're doing the long division) and bring up the decimal point when you're done. You might also need to use zeroes as placeholders. (9.1 = 9.10000...)
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3 years ago
A car is traveling at 60 kilometers per hour how many meters per second is that
kiruha [24]

60 \times 1000 = 60000 \div 60 \div 60 = 16.66
4 0
4 years ago
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